/*
 * Tencent is pleased to support the open source community by making Angel available.
 * 
 * Copyright (C) 2017 THL A29 Limited, a Tencent company. All rights reserved.
 * 
 * Licensed under the BSD 3-Clause License (the "License"); you may not use this file except in
 * compliance with the License. You may obtain a copy of the License at
 * 
 * https://opensource.org/licenses/BSD-3-Clause
 * 
 * Unless required by applicable law or agreed to in writing, software distributed under the License
 * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
 * or implied. See the License for the specific language governing permissions and limitations under
 * the License.
 */

package com.tencent.angel.psagent.matrix.transport;

import com.tencent.angel.common.Location;
import io.netty.bootstrap.Bootstrap;
import io.netty.channel.Channel;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.commons.pool.PoolableObjectFactory;

/**
 * Netty channel pool factory.
 */
public class ChannelObjectFactory implements PoolableObjectFactory<Channel> {
    private static final Log LOG = LogFactory.getLog(ChannelObjectFactory.class);
    /** server address */
    private final Location loc;

    /** netty client bootstrap */
    private final Bootstrap bootstrap;

    /**
     * Create a new ChannelObjectFactory.
     *
     * @param loc server address
     * @param bootstrap netty client bootstrap
     */
    public ChannelObjectFactory(Location loc, Bootstrap bootstrap) {
        this.loc = loc;
        this.bootstrap = bootstrap;
    }

    @Override
    public void activateObject(Channel channel) throws Exception {

    }

    @Override
    public void destroyObject(Channel channel) throws Exception {
        channel.close();
    }

    @Override
    public Channel makeObject() throws Exception {
        Channel ch = bootstrap.connect(loc.getIp(), loc.getPort() + 1).sync().channel();
        LOG.debug("connect success for " + loc.getIp() + ":" + (loc.getPort() + 1));
        return ch;
    }

    @Override
    public void passivateObject(Channel channel) throws Exception {

    }

    @Override
    public boolean validateObject(Channel channel) {
        return channel.isOpen();
    }
}
